Long-term stability of the picometer-resolution interferometer on TianQin-1 satellite

IF 3.6 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Classical and Quantum Gravity Pub Date : 2024-07-24 DOI:10.1088/1361-6382/ad5cbd

Min Ming, Bin Cao, Fangjie Liao, Minglin Yang, Xiangqing Huang, Yuanze Jiang, Zhu Li, Jingyi Zhang, Shuju Yang, Huizong Duan and Hsien-Chi Yeh

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引用次数: 0

Abstract

As ground-based gravitational wave (GW) detection has opened a new window for exploring the Universe, space-based GW detection will be the next frontier to deepen the understanding of galaxy evolution and massive black holes merging. TianQin-1 is a technology verification satellite for the space-based GW detector TianQin. One of the key technologies demonstrated in TianQin-1 is a high-precision and ultra-stable interferometer, with a noise floor lower than . In this paper, we report the long-term stability of the interferometer in the TianQin-1 satellite, which contains a quasi-monolithic optical bench made through hydroxide catalysis bonding (HCB). According to the results of the ground and in-orbit tests, the long-term stability of the interferometer for 13 months after launch has been evaluated. The resolution of the interferometer is better than 30 pm. The noise level of the interferometer is about and above 1 Hz, fulfilling the mission requirement of TianQin-1. The successful in-orbit operation has demonstrated the interferometer’s high precision and long-term stability based on the quasi-monolithic optical bench.

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天琴一号卫星上皮米分辨率干涉仪的长期稳定性

地基引力波（GW）探测为探索宇宙打开了一扇新窗口，而天基引力波探测将是加深理解星系演化和大质量黑洞合并的下一个前沿领域。天琴一号是天基 GW 探测器天琴的技术验证卫星。天琴一号展示的关键技术之一是高精度、超稳定的干涉仪，其本底噪声小于......。本文报告了天琴一号卫星干涉仪的长期稳定性，该干涉仪包含一个通过氢氧化物催化键合（HCB）制成的准单片光学工作台。根据地面和在轨测试的结果，对发射后 13 个月内干涉仪的长期稳定性进行了评估。干涉仪的分辨率优于 30 pm。干涉仪的噪声水平约为 1 赫兹及以上，满足了天琴一号的任务要求。在轨运行的成功证明了基于准单片光学台架的干涉仪的高精度和长期稳定性。

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来源期刊

Classical and Quantum Gravity 物理-天文与天体物理

CiteScore

7.00

自引率

8.60%

发文量

301

审稿时长

2-4 weeks

期刊介绍： Classical and Quantum Gravity is an established journal for physicists, mathematicians and cosmologists in the fields of gravitation and the theory of spacetime. The journal is now the acknowledged world leader in classical relativity and all areas of quantum gravity.